An important initial step when developing a questionnaire is to
A. avoid "expert" opinions about the topic because they may bias the survey.
B. test only one or two items and then add more for the final survey.
C. pretest the questionnaire using a sample similar to the planned survey.
D. all of these
C. pretest the questionnaire using a sample similar to the planned survey.
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Which of the following is the MOST general of the Gestalt principles describing how individual elements are grouped into good figures?
a. continuity b. proximity c. similarity d. simplicity
What is important about the "Big Five?"
A) stereotyping B) stabilitywith aging C) unconscious mind D) learning
Senior citizens in the United States today are
A) less likely than Canadian seniors to be poverty stricken. B) more likely than other age groups to be among the "near poor." C) more likely to be homeless than in the past. D) less likely to be healthy and independent than in the past.
Find the average signal power of the periodic signal x(t) in Figure E.32.
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